Answer
$x=-15$
Work Step by Step
$\log_{2}(1-x)=4$
Rewrite this equation in exponential form:
$1-x=2^{4}$
Solve for $x$:
$1-x=16$
$-x=16-1$
$-x=15$
$x=-15$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 4 - Review - Exercises - Page 389: 67
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